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Block and G\"ottsche have defined a $q$-number refinement of counts of tropical curves in $\mathbb{R}^2$. Under the change of variables $q=e^{iu}$, we show that the result is a generating series of higher genus log Gromov-Witten invariants…

Algebraic Geometry · Mathematics 2019-04-24 Pierrick Bousseau

Using degeneration techniques, we prove the correspondence of tropical curve counts and log Gromov-Witten invariants with general incidence and psi-class conditions in toric varieties for genus zero curves and all non-superabundant…

Algebraic Geometry · Mathematics 2019-07-02 Travis Mandel , Helge Ruddat

Via correspondence theorems, rational log Gromov--Witten invariants of the plane can be computed in terms of tropical geometry. For many cases, there exists a range of algorithms to compute tropically: for instance, there are (generalized)…

Algebraic Geometry · Mathematics 2023-07-12 Thomas Blomme , Hannah Markwig

We study the stationary descendant Gromov-Witten theory of toric surfaces by combining and extending a range of techniques - tropical curves, floor diagrams, and Fock spaces. A correspondence theorem is established between tropical curves…

Algebraic Geometry · Mathematics 2020-03-31 Renzo Cavalieri , Paul Johnson , Hannah Markwig , Dhruv Ranganathan

We study the behaviour of rational curves tangent to a hypersurface under degenerations of the hypersurface. Working within the framework of logarithmic Gromov-Witten theory, we extend the degeneration formula to the logarithmically…

Algebraic Geometry · Mathematics 2022-10-27 Lawrence Jack Barrott , Navid Nabijou

We explore the explicit relationship between the descendant Gromov--Witten theory of target curves, operators on Fock spaces, and tropical curve counting. We prove a classical/tropical correspondence theorem for descendant invariants and…

Algebraic Geometry · Mathematics 2018-12-06 Renzo Cavalieri , Paul Johnson , Hannah Markwig , Dhruv Ranganathan

We show that, after the change of variables $q=e^{iu}$, refined floor diagrams for $\mathbb{P}^2$ and Hirzebruch surfaces compute generating series of higher genus relative Gromov-Witten invariants with insertion of a lambda class. The…

Algebraic Geometry · Mathematics 2021-06-08 Pierrick Bousseau

We construct relative Gromov--Witten theory with expanded degenerations in the normal crossings setting and establish a degeneration formula for the resulting invariants. Given a simple normal crossings pair $(X,D)$, we show that there…

Algebraic Geometry · Mathematics 2022-05-03 Dhruv Ranganathan

We show that the counting of rational curves on a complete toric variety that are in general position to the toric prime divisors coincides with the counting of certain tropical curves. The proof is algebraic-geometric and relies on…

Algebraic Geometry · Mathematics 2007-05-23 Takeo Nishinou , Bernd Siebert

Since the first famous correspondence theorem by Mikhalkin appeared in 2005, tropical geometry has allowed a parallel treatment of real and complex counting problems. A prime example are the genus 0 Gromov-Witten invariants of the plane…

Algebraic Geometry · Mathematics 2026-01-21 Andrés Jaramillo Puentes , Hannah Markwig , Sabrina Pauli , Felix Röhrle

We give a tropical description of the counting of real log curves in toric degenerations of toric varieties. We treat the case of genus zero curves and all non-superabundant higher-genus situations. The proof relies on log deformation…

Algebraic Geometry · Mathematics 2023-03-03 Hülya Argüz , Pierrick Bousseau

We propose a logarithmic enhancement of the Gromov-Witten/Donaldson-Thomas correspondence, with descendants, and study its behavior under simple normal crossings degenerations. The formulation of the logarithmic correspondence requires a…

Algebraic Geometry · Mathematics 2025-03-25 Davesh Maulik , Dhruv Ranganathan

We address the problem of existence of refined (i.e., depending on a formal parameter) tropical enumerative invariants, and we present two new examples of a refined count of rational marked tropical curves. One of the new invariants counts…

Algebraic Geometry · Mathematics 2019-09-17 Eugenii Shustin

A tropical curve in $\mathbb R^{3}$ contributes to Gromov-Witten invariants in all genus. Nevertheless, we present a simple formula for how a given tropical curve contributes to Gromov-Witten invariants when we encode these invariants in a…

Symplectic Geometry · Mathematics 2017-04-26 Brett Parker

In arXiv:1505.04338(4), G. Mikhalkin introduced a refined count for the real rational curves in a toric surface which pass through certain conjugation invariant set of points on the toric boundary of the surface. Such a set consists of real…

Algebraic Geometry · Mathematics 2020-02-04 Thomas Blomme

We define tropical Psi-classes on the moduli space of rational tropical curves in R^2 and consider intersection products of Psi-classes and pull-backs of evaluations on this space. We show a certain WDVV equation which is sufficient to…

Algebraic Geometry · Mathematics 2009-11-29 Hannah Markwig , Johannes Rau

In this note I will explain how relative/log Gromov-Witten invariants of pairs $(X,D)$ with very ample smooth anticanonical divisor $D$ can be computed using algebro-combinatorial objects called scattering diagrams. The underlying principle…

Algebraic Geometry · Mathematics 2022-10-20 Tim Graefnitz

We prove that the quadratically enriched count of rational curves in a smooth toric del Pezzo surface passing through $k$-rational points and pairs of conjugate points in quadratic field extensions $k\subset k(\sqrt{d_i})$ can be determined…

Algebraic Geometry · Mathematics 2026-03-19 Andrés Jaramillo Puentes , Hannah Markwig , Sabrina Pauli , Felix Röhrle

We introduce a geometric refinement of Gromov-Witten invariants for $\mathbb P^1$-bundles relative to the natural fiberwise boundary structure. We call these refined invariant correlated Gromov-Witten invariants. Furthermore, we prove a…

Algebraic Geometry · Mathematics 2025-06-19 Thomas Blomme , Francesca Carocci

This article explores to which extent the algebro-geometric theory of rational descendant Gromov-Witten invariants can be carried over to the tropical world. Despite the fact that the tropical moduli-spaces we work with are non-compact, the…

Algebraic Geometry · Mathematics 2019-10-14 Johannes Rau
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